#include <string.h>
#include <unistd.h>
#include <pwd.h>
+#include <sys/capability.h>
#include "sd-id128.h"
#include "sd-messages.h"
-
#include "strv.h"
#include "mkdir.h"
#include "path-util.h"
#include "utf8.h"
#include "unit-name.h"
#include "bus-util.h"
+#include "bus-errors.h"
#include "time-util.h"
+#include "cgroup-util.h"
#include "machined.h"
-static bool valid_machine_name(const char *p) {
- size_t l;
-
- if (!filename_is_safe(p))
- return false;
-
- if (!ascii_is_valid(p))
- return false;
-
- l = strlen(p);
-
- if (l < 1 || l> 64)
- return false;
-
- return true;
-}
-
-static int method_get_machine(sd_bus *bus, sd_bus_message *message, void *userdata) {
+static int method_get_machine(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_free_ char *p = NULL;
Manager *m = userdata;
Machine *machine;
r = sd_bus_message_read(message, "s", &name);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return r;
machine = hashmap_get(m->machines, name);
if (!machine)
- return sd_bus_reply_method_errorf(bus, message, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
p = machine_bus_path(machine);
if (!p)
- return sd_bus_reply_method_errno(bus, message, -ENOMEM, NULL);
+ return -ENOMEM;
- return sd_bus_reply_method_return(bus, message, "o", p);
+ return sd_bus_reply_method_return(message, "o", p);
}
-static int method_get_machine_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata) {
+static int method_get_machine_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_free_ char *p = NULL;
Manager *m = userdata;
Machine *machine = NULL;
- uint32_t pid;
+ pid_t pid;
int r;
assert(bus);
assert(message);
assert(m);
+ assert_cc(sizeof(pid_t) == sizeof(uint32_t));
+
r = sd_bus_message_read(message, "u", &pid);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return r;
+
+ if (pid == 0) {
+ _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_pid(creds, &pid);
+ if (r < 0)
+ return r;
+ }
r = manager_get_machine_by_pid(m, pid, &machine);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return r;
if (!machine)
- return sd_bus_reply_method_errorf(bus, message, BUS_ERROR_NO_MACHINE_FOR_PID, "PID %lu does not belong to any known machine", (unsigned long) pid);
+ return sd_bus_error_setf(error, BUS_ERROR_NO_MACHINE_FOR_PID, "PID "PID_FMT" does not belong to any known machine", pid);
p = machine_bus_path(machine);
if (!p)
- return sd_bus_reply_method_errno(bus, message, -ENOMEM, NULL);
+ return -ENOMEM;
- return sd_bus_reply_method_return(bus, message, "o", p);
+ return sd_bus_reply_method_return(message, "o", p);
}
-static int method_list_machines(sd_bus *bus, sd_bus_message *message, void *userdata) {
+static int method_list_machines(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
Manager *m = userdata;
Machine *machine;
assert(message);
assert(m);
- r = sd_bus_message_new_method_return(bus, message, &reply);
+ r = sd_bus_message_new_method_return(message, &reply);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return sd_bus_error_set_errno(error, r);
r = sd_bus_message_open_container(reply, 'a', "(ssso)");
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return sd_bus_error_set_errno(error, r);
HASHMAP_FOREACH(machine, m->machines, i) {
_cleanup_free_ char *p = NULL;
p = machine_bus_path(machine);
if (!p)
- return sd_bus_reply_method_errno(bus, message, -ENOMEM, NULL);
+ return -ENOMEM;
r = sd_bus_message_append(reply, "(ssso)",
machine->name,
machine->service,
p);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return sd_bus_error_set_errno(error, r);
}
r = sd_bus_message_close_container(reply);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return sd_bus_error_set_errno(error, r);
return sd_bus_send(bus, reply, NULL);
}
-static int method_create_machine(sd_bus *bus, sd_bus_message *message, void *userdata) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+static int method_create_or_register_machine(Manager *manager, sd_bus_message *message, Machine **_m, sd_bus_error *error) {
const char *name, *service, *class, *root_directory;
- Manager *manager = userdata;
MachineClass c;
uint32_t leader;
sd_id128_t id;
size_t n;
int r;
- assert(bus);
- assert(message);
assert(manager);
+ assert(message);
+ assert(_m);
r = sd_bus_message_read(message, "s", &name);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
- if (!valid_machine_name(name))
- return sd_bus_reply_method_errorf(bus, message, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine name");
+ return r;
+ if (!machine_name_is_valid(name))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine name");
r = sd_bus_message_read_array(message, 'y', &v, &n);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return r;
if (n == 0)
id = SD_ID128_NULL;
else if (n == 16)
memcpy(&id, v, n);
else
- return sd_bus_reply_method_errorf(bus, message, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine ID parameter");
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine ID parameter");
r = sd_bus_message_read(message, "ssus", &service, &class, &leader, &root_directory);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return r;
if (isempty(class))
c = _MACHINE_CLASS_INVALID;
else {
c = machine_class_from_string(class);
if (c < 0)
- return sd_bus_reply_method_errorf(bus, message, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine class parameter");
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine class parameter");
}
if (leader == 1)
- return sd_bus_reply_method_errorf(bus, message, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
if (!isempty(root_directory) && !path_is_absolute(root_directory))
- return sd_bus_reply_method_errorf(bus, message, SD_BUS_ERROR_INVALID_ARGS, "Root directory must be empty or an absolute path");
-
- r = sd_bus_message_enter_container(message, 'a', "(sv)");
- if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Root directory must be empty or an absolute path");
if (leader == 0) {
+ _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
+ if (r < 0)
+ return r;
+
assert_cc(sizeof(uint32_t) == sizeof(pid_t));
- r = sd_bus_get_owner_pid(bus, sd_bus_message_get_sender(message), (pid_t*) &leader);
+ r = sd_bus_creds_get_pid(creds, (pid_t*) &leader);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return r;
}
if (hashmap_get(manager->machines, name))
- return sd_bus_reply_method_errorf(bus, message, BUS_ERROR_MACHINE_EXISTS, "Machine '%s' already exists", name);
+ return sd_bus_error_setf(error, BUS_ERROR_MACHINE_EXISTS, "Machine '%s' already exists", name);
r = manager_add_machine(manager, name, &m);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return r;
m->leader = leader;
m->class = c;
if (!isempty(service)) {
m->service = strdup(service);
if (!m->service) {
- r = sd_bus_reply_method_errno(bus, message, -ENOMEM, NULL);
+ r = -ENOMEM;
goto fail;
}
}
if (!isempty(root_directory)) {
m->root_directory = strdup(root_directory);
if (!m->root_directory) {
- r = sd_bus_reply_method_errno(bus, message, -ENOMEM, NULL);
+ r = -ENOMEM;
goto fail;
}
}
- r = machine_start(m, message, &error);
- if (r < 0) {
- r = sd_bus_reply_method_errno(bus, message, r, &error);
+ *_m = m;
+
+ return 1;
+
+fail:
+ machine_add_to_gc_queue(m);
+ return r;
+}
+
+static int method_create_machine(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *manager = userdata;
+ Machine *m = NULL;
+ int r;
+
+ r = method_create_or_register_machine(manager, message, &m, error);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_enter_container(message, 'a', "(sv)");
+ if (r < 0)
goto fail;
- }
- m->create_message = sd_bus_message_ref(message);
+ r = machine_start(m, message, error);
+ if (r < 0)
+ goto fail;
+ m->create_message = sd_bus_message_ref(message);
return 1;
fail:
machine_add_to_gc_queue(m);
+ return r;
+}
+
+static int method_register_machine(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *manager = userdata;
+ _cleanup_free_ char *p = NULL;
+ Machine *m = NULL;
+ int r;
+
+ r = method_create_or_register_machine(manager, message, &m, error);
+ if (r < 0)
+ return r;
+
+ r = cg_pid_get_unit(m->leader, &m->unit);
+ if (r < 0) {
+ r = sd_bus_error_set_errnof(error, r, "Failed to determine unit of process "PID_FMT" : %s", m->leader, strerror(-r));
+ goto fail;
+ }
+ m->registered = true;
+
+ r = machine_start(m, NULL, error);
+ if (r < 0)
+ goto fail;
+
+ p = machine_bus_path(m);
+ if (!p) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ return sd_bus_reply_method_return(message, "o", p);
+
+fail:
+ machine_add_to_gc_queue(m);
return r;
}
-static int method_terminate_machine(sd_bus *bus, sd_bus_message *message, void *userdata) {
+static int method_terminate_machine(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
Manager *m = userdata;
Machine *machine;
const char *name;
r = sd_bus_message_read(message, "s", &name);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return sd_bus_error_set_errno(error, r);
machine = hashmap_get(m->machines, name);
if (!machine)
- return sd_bus_reply_method_errorf(bus, message, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
-
- r = machine_stop(machine);
- if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
- return sd_bus_reply_method_return(bus, message, NULL);
+ return bus_machine_method_terminate(bus, message, machine, error);
}
-static int method_kill_machine(sd_bus *bus, sd_bus_message *message, void *userdata) {
+static int method_kill_machine(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
Manager *m = userdata;
Machine *machine;
const char *name;
- const char *swho;
- int32_t signo;
- KillWho who;
int r;
assert(bus);
assert(message);
assert(m);
- r = sd_bus_message_read(message, "ssi", &name, &swho, &signo);
+ r = sd_bus_message_read(message, "s", &name);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return sd_bus_error_set_errno(error, r);
- if (isempty(swho))
- who = KILL_ALL;
- else {
- who = kill_who_from_string(swho);
- if (who < 0)
- return sd_bus_reply_method_errorf(bus, message, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho);
- }
+ machine = hashmap_get(m->machines, name);
+ if (!machine)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
- if (signo <= 0 || signo >= _NSIG)
- return sd_bus_reply_method_errorf(bus, message, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
+ return bus_machine_method_kill(bus, message, machine, error);
+}
+
+static int method_get_machine_addresses(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+ Machine *machine;
+ const char *name;
+ int r;
+
+ assert(bus);
+ assert(message);
+ assert(m);
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
machine = hashmap_get(m->machines, name);
if (!machine)
- return sd_bus_reply_method_errorf(bus, message, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
+
+ return bus_machine_method_get_addresses(bus, message, machine, error);
+}
+
+static int method_get_machine_os_release(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+ Machine *machine;
+ const char *name;
+ int r;
+
+ assert(bus);
+ assert(message);
+ assert(m);
- r = machine_kill(machine, who, signo);
+ r = sd_bus_message_read(message, "s", &name);
if (r < 0)
- return sd_bus_reply_method_errno(bus, message, r, NULL);
+ return sd_bus_error_set_errno(error, r);
+
+ machine = hashmap_get(m->machines, name);
+ if (!machine)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
- return sd_bus_reply_method_return(bus, message, NULL);
+ return bus_machine_method_get_os_release(bus, message, machine, error);
}
const sd_bus_vtable manager_vtable[] = {
SD_BUS_VTABLE_START(0),
- SD_BUS_METHOD("GetMachine", "s", "o", method_get_machine, 0),
- SD_BUS_METHOD("GetMachineByPID", "u", "o", method_get_machine_by_pid, 0),
- SD_BUS_METHOD("ListMachines", NULL, "a(ssso)", method_list_machines, 0),
+ SD_BUS_METHOD("GetMachine", "s", "o", method_get_machine, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("GetMachineByPID", "u", "o", method_get_machine_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("ListMachines", NULL, "a(ssso)", method_list_machines, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("CreateMachine", "sayssusa(sv)", "o", method_create_machine, 0),
- SD_BUS_METHOD("KillMachine", "ssi", NULL, method_kill_machine, 0),
- SD_BUS_METHOD("TerminateMachine", "s", NULL, method_terminate_machine, 0),
+ SD_BUS_METHOD("RegisterMachine", "sayssus", "o", method_register_machine, 0),
+ SD_BUS_METHOD("KillMachine", "ssi", NULL, method_kill_machine, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+ SD_BUS_METHOD("TerminateMachine", "s", NULL, method_terminate_machine, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+ SD_BUS_METHOD("GetMachineAddresses", "s", "a(yay)", method_get_machine_addresses, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("GetMachineOSRelease", "s", "a{ss}", method_get_machine_os_release, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_SIGNAL("MachineNew", "so", 0),
SD_BUS_SIGNAL("MachineRemoved", "so", 0),
SD_BUS_VTABLE_END
};
-int machine_node_enumerator(sd_bus *bus, const char *path, char ***nodes, void *userdata) {
- _cleanup_strv_free_ char **l = NULL;
- Machine *machine = NULL;
- Manager *m = userdata;
- Iterator i;
- int r;
-
- assert(bus);
- assert(path);
- assert(nodes);
-
- HASHMAP_FOREACH(machine, m->machines, i) {
- char *p;
-
- p = machine_bus_path(machine);
- if (!p)
- return -ENOMEM;
-
- r = strv_push(&l, p);
- if (r < 0) {
- free(p);
- return r;
- }
- }
-
- *nodes = l;
- l = NULL;
-
- return 1;
-}
-
-int match_job_removed(sd_bus *bus, sd_bus_message *message, void *userdata) {
+int match_job_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
const char *path, *result, *unit;
Manager *m = userdata;
Machine *machine;
r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result);
if (r < 0) {
- log_error("Failed to parse JobRemoved message: %s", strerror(-r));
- return 0;
+ bus_log_parse_error(r);
+ return r;
}
machine = hashmap_get(m->machine_units, unit);
if (streq(result, "done"))
machine_send_create_reply(machine, NULL);
else {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL;
- sd_bus_error_setf(&error, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result);
+ sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result);
- machine_send_create_reply(machine, &error);
+ machine_send_create_reply(machine, &e);
}
} else
machine_save(machine);
return 0;
}
-int match_properties_changed(sd_bus *bus, sd_bus_message *message, void *userdata) {
+int match_properties_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_free_ char *unit = NULL;
Manager *m = userdata;
Machine *machine;
const char *path;
+ int r;
assert(bus);
assert(message);
if (!path)
return 0;
- unit_name_from_dbus_path(path, &unit);
- if (!unit)
- return 0;
+ r = unit_name_from_dbus_path(path, &unit);
+ if (r < 0)
+ return r;
machine = hashmap_get(m->machine_units, unit);
if (machine)
return 0;
}
-int match_unit_removed(sd_bus *bus, sd_bus_message *message, void *userdata) {
+int match_unit_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
const char *path, *unit;
Manager *m = userdata;
Machine *machine;
r = sd_bus_message_read(message, "so", &unit, &path);
if (r < 0) {
- log_error("Failed to parse UnitRemoved message: %s", strerror(-r));
- return 0;
+ bus_log_parse_error(r);
+ return r;
}
machine = hashmap_get(m->machine_units, unit);
return 0;
}
-int match_reloading(sd_bus *bus, sd_bus_message *message, void *userdata) {
+int match_reloading(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
Manager *m = userdata;
Machine *machine;
Iterator i;
r = sd_bus_message_read(message, "b", &b);
if (r < 0) {
- log_error("Failed to parse Reloading message: %s", strerror(-r));
- return 0;
+ bus_log_parse_error(r);
+ return r;
}
-
if (b)
return 0;
r = sd_bus_message_new_method_call(
manager->bus,
+ &m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
- "StartTransientUnit",
- &m);
+ "StartTransientUnit");
if (r < 0)
return r;
return r;
}
- /* cgroup empty notification is not available in containers
- * currently. To make this less problematic, let's shorten the
- * stop timeout for machines, so that we don't wait
- * forever. */
- r = sd_bus_message_append(m, "(sv)", "TimeoutStopUSec", "t", 500 * USEC_PER_MSEC);
- if (r < 0)
- return r;
-
r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid);
if (r < 0)
return r;
if (r < 0)
return r;
- r = sd_bus_send_with_reply_and_block(manager->bus, m, 0, error, &reply);
+ r = sd_bus_message_append(m, "a(sa(sv))", 0);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_call(manager->bus, m, 0, error, &reply);
if (r < 0)
return r;
return 1;
}
-int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error) {
+int manager_kill_unit(Manager *manager, const char *unit, int signo, sd_bus_error *error) {
assert(manager);
assert(unit);
"KillUnit",
error,
NULL,
- "ssi", unit, who == KILL_LEADER ? "main" : "all", signo);
+ "ssi", unit, "all", signo);
}
int manager_unit_is_active(Manager *manager, const char *unit) {
return true;
}
+
+int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine) {
+ _cleanup_free_ char *unit = NULL;
+ Machine *mm;
+ int r;
+
+ assert(m);
+ assert(pid >= 1);
+ assert(machine);
+
+ r = cg_pid_get_unit(pid, &unit);
+ if (r < 0)
+ mm = hashmap_get(m->machine_leaders, UINT_TO_PTR(pid));
+ else
+ mm = hashmap_get(m->machine_units, unit);
+
+ if (!mm)
+ return 0;
+
+ *machine = mm;
+ return 1;
+}
+
+int manager_add_machine(Manager *m, const char *name, Machine **_machine) {
+ Machine *machine;
+
+ assert(m);
+ assert(name);
+
+ machine = hashmap_get(m->machines, name);
+ if (!machine) {
+ machine = machine_new(m, name);
+ if (!machine)
+ return -ENOMEM;
+ }
+
+ if (_machine)
+ *_machine = machine;
+
+ return 0;
+}
~ianmdlvl / elogind.git / blobdiff